Definition of Backup

1. Noun. An accumulation caused by clogging or a stoppage. "He discovered a backup in the toilet"

Generic synonyms: Accretion, Accumulation
Derivative terms: Back Up

2. Noun. Someone who takes the place of another (as when things get dangerous or difficult). "We need extra employees for summer fill-ins"

3. Noun. A musical part (vocal or instrumental) that supports or provides background for other musical parts.
Exact synonyms: Accompaniment, Musical Accompaniment, Support
Generic synonyms: Part, Voice
Specialized synonyms: Descant, Discant, Vamp
Derivative terms: Accompany, Support

4. Noun. (computer science) a copy of a file or directory on a separate storage device. "He made a backup in case the original was accidentally damaged or erased"
Exact synonyms: Computer Backup
Generic synonyms: Duplicate, Duplication
Category relationships: Computer Science, Computing
Derivative terms: Back Up

5. Noun. The act of providing approval and support. "His vigorous backing of the conservatives got him in trouble with progressives"
Exact synonyms: Backing, Championship, Patronage
Generic synonyms: Approval, Approving, Blessing
Derivative terms: Back, Back, Back, Back Up

Definition of Backup

1. Noun. A reserve or substitute. ¹

2. Noun. (computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged. ¹

3. Noun. An accumulation of material that halts the flow or movement of something. ¹

4. Noun. (context: law enforcement) reinforcements ¹

5. Adjective. standby, reserve or extra ¹

6. Adjective. (computing) That is intended as a backup. ¹

¹ Source:

Definition of Backup

1. a substitute [n -S]

Lexicographical Neighbors of Backup

backup (current term)
backup file
backup man
backup rate
backup vocalist
backup vocals
backward and forward
backward compatibility
backward compatible
backward compliment

Literary usage of Backup

Below you will find example usage of this term as found in modern and/or classical literature:

1. Where No Man Has Gone Before: A History of Apollo Lunar Exploration Missions by William D. Compton (1996)
"Chosen with the second group of astronauts in 1962; backup command pilot for Gemini IV, command pilot for Gemini VII, the longest manned mission (14 days) ..."

2. Designing a Data Entry and Verification System by Peter A. Tatian (1992)
"These are quite fast and can compress files to "squeeze" more data onto a diskette.10 Of course, there are also the DOS backup and RESTORE commands, ..."

3. Select Cases and Other Authorities on the Law of Property by Edward Henry Warren (1915)
"On the same day backup sent the letter to the main office, in Boston, and the day afterwards it came back to the Roxbury office, indorsed, ..."

4. Network Security by David J. Stang (1991)
"I'd recommend: Ü use backup options within the applications software. For instance, many word processors include options for timed saves and for creation of ..."

5. Defend Your Data!: Guide to Data Recovery by David J. Stang (1991)
"backup everything, and keep a copy of the backups in a safe place. ... If L How to W users to backup. you lost data nearly every day, as I did in my first ..."

6. Niosh Manual of Analytical Methods: Sampling and Analytical Methods for edited by Peter M. Eller (1994)
"If the sampler has a backup section, then a like number of separate backup ... Samples (and backup sections) should be prepared for analysis and analyzed ..."

7. Information Resources Security & Risk Management: Policy, Standards (1993)
"3.16 DATA AND SOFTWARE backup Contingency planning includes procedures and actions ... On-site backup is employed to have readily available current data in ..."

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